As Falcon said i'd check out the sequence method in NPC.java
Code:
public void sequence() {
getCombatBuilder().process();
/**
* HP restoration
*/
if(constitution < defaultConstitution) {
if(!isDying) {
if(getLastCombat().elapsed((id == 13447 || id == 3200 ? 50000 : 5000)) && !getCombatBuilder().isAttacking() && getLocation() != Location.PEST_CONTROL_GAME && getLocation() != Location.DUNGEONEERING) {
setConstitution(constitution + (int)(defaultConstitution * 0.1));
if(constitution > defaultConstitution)
setConstitution(defaultConstitution);
}
}
}
}
if yours is similar to mine, then add the npc id next to Nex and Chaos ele and it should change the health restore from 5 seconds to 50 seconds. Maybe lol